Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Ontario to Seoul from $519

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Seoul departing on 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Japan Airlines Logo
6:00 am - 10:55 am
ONT
-
GMP
35h 55m2 stops
Japan Airlines Logo
12:05 pm - 3:08 pm
GMP
-
ONT
20h 03m2 stops
$1,020Japan Airlines
Sun, Jan 18 - Thu, Feb 5
Japan Airlines Logo
6:00 am - 10:55 am
ONT
-
GMP
35h 55m2 stops
Japan Airlines Logo
7:40 pm - 3:08 pm
GMP
-
ONT
36h 28m2 stops
$1,070Japan Airlines
Mon, Feb 2 - Wed, Feb 25
Japan Airlines Logo
6:00 am - 9:50 pm
ONT
-
GMP
23h 50m2 stops
Japan Airlines Logo
12:05 pm - 4:16 pm
GMP
-
ONT
20h 11m2 stops
$2,050Japan Airlines
Fri, May 22 - Wed, Jun 10
Multiple Airlines Logo
6:49 pm - 11:05 am
ONT
-
GMP
24h 16m2 stops
Multiple Airlines Logo
3:45 pm - 10:45 pm
GMP
-
ONT
23h 00m2 stops
$2,523Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
11:58 pm - 9:50 pm
ONT
-
GMP
29h 52m2 stops
Multiple Airlines Logo
7:55 am - 5:45 pm
GMP
-
ONT
25h 50m2 stops
$2,743Multiple Airlines
Sun, Apr 5 - Sun, Apr 19
Japan Airlines Logo
6:00 am - 10:05 pm
ONT
-
GMP
24h 05m2 stops
Japan Airlines Logo
12:05 pm - 6:13 pm
GMP
-
ONT
22h 08m2 stops
$2,805Japan Airlines
Fri, Mar 27 - Mon, Apr 13
Multiple Airlines Logo
11:59 pm - 9:50 pm
ONT
-
GMP
29h 51m2 stops
Multiple Airlines Logo
7:55 am - 5:45 pm
GMP
-
ONT
25h 50m2 stops
$3,074Multiple Airlines
Mon, May 11 - Sat, May 16
Multiple Airlines Logo
11:59 pm - 9:50 pm
ONT
-
GMP
29h 51m2 stops
Multiple Airlines Logo
7:55 am - 11:20 am
GMP
-
ONT
19h 25m2 stops
$3,226Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
1:22 am - 9:50 pm
ONT
-
GMP
28h 28m2 stops
Multiple Airlines Logo
7:55 am - 8:02 pm
GMP
-
ONT
28h 07m2 stops
$3,347Multiple Airlines
Mon, Jun 8 - Thu, Jun 25
Multiple Airlines Logo
1:27 pm - 10:25 pm
ONT
-
GMP
40h 58m3 stops
Multiple Airlines Logo
3:45 pm - 10:45 pm
GMP
-
ONT
23h 00m3 stops
$3,767Multiple Airlines
Wed, Apr 1 - Wed, Apr 8

Japan Airlines flights from Ontario to Seoul Gimpo Intl Airport

Our best Japan Airlines deals on Ontario to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Jan 18
ONT6:00 amOntario
35h 55m
2 stops
GMP10:55 amSeoul Gimpo Intl
Feb 5
GMP12:05 pmSeoul Gimpo Intl
20h 03m
2 stops
ONT3:08 pmOntario
$1,020
Find similar
Japan Airlines
Feb 2
ONT6:00 amOntario
35h 55m
2 stops
GMP10:55 amSeoul Gimpo Intl
Feb 25
GMP7:40 pmSeoul Gimpo Intl
36h 28m
2 stops
ONT3:08 pmOntario
$1,070
Find similar
Japan Airlines
May 22
ONT6:00 amOntario
23h 50m
2 stops
GMP9:50 pmSeoul Gimpo Intl
Jun 10
GMP12:05 pmSeoul Gimpo Intl
20h 11m
2 stops
ONT4:16 pmOntario
$2,050
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Seoul Gimpo Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Ontario to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sun 1/18

6:00 am-10:55 am

2 stops35h 55m

Seoul Gimpo Intl

Thu 2/5

12:05 pm-3:08 pm

2 stops20h 03m

$1,020

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Mon 2/2

6:00 am-10:55 am

2 stops35h 55m

Seoul Gimpo Intl

Wed 2/25

7:40 pm-3:08 pm

2 stops36h 28m

$1,070

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Fri 5/22

6:00 am-9:50 pm

2 stops23h 50m

Seoul Gimpo Intl

Wed 6/10

12:05 pm-4:16 pm

2 stops20h 11m

$2,050

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Wed 4/1

6:49 pm-11:05 am

2 stops24h 16m

Seoul Gimpo Intl

Wed 4/8

3:45 pm-10:45 pm

2 stops23h 00m

$2,523

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sun 4/5

11:58 pm-9:50 pm

2 stops29h 52m

Seoul Gimpo Intl

Sun 4/19

7:55 am-5:45 pm

2 stops25h 50m

$2,743

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Fri 3/27

6:00 am-10:05 pm

2 stops24h 05m

Seoul Gimpo Intl

Mon 4/13

12:05 pm-6:13 pm

2 stops22h 08m

$2,805

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Mon 5/11

11:59 pm-9:50 pm

2 stops29h 51m

Seoul Gimpo Intl

Sat 5/16

7:55 am-5:45 pm

2 stops25h 50m

$3,074

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Fri 4/10

11:59 pm-9:50 pm

2 stops29h 51m

Seoul Gimpo Intl

Fri 4/17

7:55 am-11:20 am

2 stops19h 25m

$3,226

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Mon 6/8

1:22 am-9:50 pm

2 stops28h 28m

Seoul Gimpo Intl

Thu 6/25

7:55 am-8:02 pm

2 stops28h 07m

$3,347

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Wed 4/1

1:27 pm-10:25 pm

3 stops40h 58m

Seoul Gimpo Intl

Wed 4/8

3:45 pm-10:45 pm

3 stops23h 00m

$3,767

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seoul from

How to get the cheapest flight ticket from Ontario to Seoul Gimpo Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seoul Gimpo Intl Airport?

On average, the least expensive day to fly to Seoul Gimpo Intl Airport from Ontario is on a Monday. momondo users have found tickets for Monday departures for as low as $1,277. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Seoul Gimpo Intl Airport is Friday, with ticket prices averaging around $1,749.

What is the cheapest time of day to depart on your flight to Seoul Gimpo Intl Airport?

According to our data, the cheapest time of day to fly to Seoul Gimpo Intl Airport is in the evening. momondo users have found flights departing from Ontario to Seoul Gimpo Intl Airport in the evening for as low as $1,191. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seoul Gimpo Intl Airport is at noon when prices are around $1,733.

When to book flights from Ontario to Seoul Gimpo Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Seoul Gimpo Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Seoul Gimpo Intl Airport (ONT to GMP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Seoul Gimpo Intl Airport

Fastest flight time

22h 55m

Direct flights

None
The fastest flight from Ontario to Seoul Gimpo Intl Airport takes 22h 55m
There are no direct flights from Ontario to Seoul Gimpo Intl Airport. There are no popular flight routes from Ontario to Seoul Gimpo Intl Airport.
Search flight deals

  • How far is Ontario to Seoul Gimpo Intl by plane?

    A flight from Ontario to Seoul Gimpo Intl will travel around 5983.3 mi. By plane, this route typically takes 22h 55m.

  • When did momondo last update prices for flights from Ontario Airport to Seoul Gimpo Intl Airport?

    Prices for flights from Ontario Airport to Seoul Gimpo Intl Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Seoul Gimpo Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Seoul Gimpo Intl Airport.

  • What documentation or ID do you need to fly to Seoul Gimpo Intl Airport?

    The necessary travel and health documents for your Seoul Gimpo Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Seoul?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Seoul. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Seoul with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seoul from Ontario with this policy.

How can momondo help me find flights from Ontario to Seoul?

momondo helps you find the best flight between Ontario and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from Ontario and alert you when they change.

An easier way to manage your Seoul Gimpo Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 1/27
Tue 2/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo
Flights to Incheon Intl Airportfrom $588